May I humbly suggest you a follow a thoroughly researched & tested diet, proven to cure or reduce diabetes - DR Michael Mosely, "the Fast 800" and his wife's recipe book "the fast 800 Recipe Book".
All the answers about various foods, research links etc. Tested and part of the NHS toolkit. I bought my copies 2nd hand on Amazon.
It works - period.
I didn't get on with the cauliflower mash easily at first either, it needs very little cooking and the olive oil in it helps. I thought sticking to the first 800cals/day for 4-6 weeks was going to be tough, it was'nt. But keeping to the 5:2 bit later I find harder, but not missing bread or potatoes at all. The odd 1/2 sweet potato creeps in sometimes.